Turning and heading machine



W. KIRCHNER ET AL TURNING AND HEADING MACHINE Mm'h 18, 1930.

Filed July 29, 1927. 5 sheets-sheet 1 VENToRs.

A TTORNEY.

w. KIRCHNER ET AL TURNING AND HEADING'MAGHINE March 18, 1930.

Filed July 29 `l 1927 @s ,sheets-sheet 2 omv 3 A ATTORNEY.

March 18, 1930.` w. KIRCHNER ET AL 1,750,932.

TURNING AND HEADING ,MACHINE lFiled July 29, 1927 s sheets-sheet 3-WLATTORNEK Patented Mar. 18, 1930 UNETED `STATES WILLIAM KRCI-INER ANDFRANK Jr SHELDON, OF SPARTA, WISCONSIN TURNING AND HEADING MACHINEApplication led July 29, 1927. Serial No. 209,304.

MThis invention relates to improvements in turning and heading machines,and although the invention is primarily adapted for use in themanufacture of posts, it is also readily adaptable for various otheruses.

`The invention has for its object to provide a machine wherein a post orother object may be turned down to the desired size and shape orotherwise wrought upon and which, co-

incident with the turning operation, heads or shapes the extremity ofthe post without requiring any additional work on the part of theoperator.

A further object of the invention is the provision of a machine whereinthe cutter and header elements are both driven from a l common drivingsource.

A further object of the invention is the provision of a carriage forthe' work and means for yieldably advancing the carriage as the cuttingoperation progresses and for returning the carriage to initial positionafter the completion of a post.

A further object is the provision of means for permitting interruptionin the operation of the work piece during return movement of thecarriage.

A further object of the invention consists in the embodiment in amachine of the character described of such structural features as tendto increase its efficiency and convenience of operation without,however, involving structural complication or unnecessary expense ofmanufacture.v

in the accompanying drawing:

Fig. 1 is a top plan View of the machine;

Fig. 2 is a side elevation thereof;

Fig. 3 is a view similar to Fig. 1 showing the carriage advanced to aposition to engage the work with the headingcutter;

Fig. 4 is a section on the line 4-4 of Fig. 3;

Fig. 5 is a transverse section through the frame and carriage; Y

Figs. 6 and 7 are detail views of the main and head cutters,respectively;

Fig. 8 is a partly sectional end view from the right hand end of theparts as shown in Figure 1, representing the arrangement of the frictiondrive wheels;

Fig. 9 shows a side view of the yoke shaped auxiliary holder fixed tothe side rail vas set 4forth in Figure 3.

Referring to the drawing in detail:

The numeral 5 indicates a suitable supporting structure on which theside rails 6 are mounted, the latter constituting a combined support andguide forthe carriage 7 which is movable longitudinally of the guidevrails 6. A work support and actuating means is provided as showncomprising a driving member or chuck 8 mounted on the carriage 7 andprovided with work clamping screws or equivalent means 9 by which thework is rigidly clamped in the support or holder 8. The oppositeextremity of the work piece is centered by a tail stop 10 which is borneby the extremity of the carriage 7.

A sprocket wheel 11 is fixed to the rotatable work holder 8 and coactingwith a chain 12 is driven by a sprocket wheel 13 carried by a shaft 14journalled in bearings 15 carried by one of the rails 6. The shaft 14 isslotted from end to end and the wheel 13 is slidably ,keyed thereon,being moved along the shaft incident to travel of the carriage by a yoke7 shaped member 16 fixed to the carriage 7 and having forked extremitiesembracing the shaft 14 and confining the wheel 13. Y

The shaft 14 from which rotary motion is imparted to the work holder 8is driven from- P a shaft 17 through the medium of gear wheels 18.

A pair of shafts 19 and 2() mounted on the guide rails 6 coact with aiexible cable 21 to effect feeding and return movements of the carriage7. 'The extremities of the cable are wound about the respective shafts19 and 2O i and extending longitudinally of the frame, constituted inpart by the rails 6, are engaged at the opposite end of the latter overa guide pulley 20a supported by the transverse shaft 20b borne by theends of the siderails as set forth in Figure 1, the cable being fixedintermediate its extremities to an arm 21a carried by a cross member2,1b of the carriage 7 t whereby rotation of one or the other of theshafts 19 or 2O effects longitudinal movement of the carriage 7 in thedesired direction.

" One extremity ofeach shaft 19 and 20 is journalled on a commonbearingr22 which is slidablymounted on the adjacent rail 6,' and v*ismovedfrom one position to thejother bya tremities of the shafts19 and 20are suit-ably mounted to permit the necessary lateral movement ofthefirst mentioned/ ends incident to sliding movementof thejbearings 22.The bearings 22 for the transverse shaft 19,

and the like bearings .for the fellowtrans?v V'verse shaft 20arecarriedby 'base' plate 22a Vwhich rests and slides lengthwise uponthe side rails 6, and as the lever 23isop`e'ratedV the friction wheels25fare alternately'brought f into engagement with the Vdriven frictionVwheel-'24. f- Eachy shaft 19 and-y20 carries a friction drive wheel 25andv these are alternately` engageable with a central drive lwheel24Yfixed to the shaft 17 l A beltor other power transmitting element Y27 is trainedovera wheel 28 fixed to the shaft Y 17 and is engagedatropposite endsY over a pulley fixed tothe drive shaft v29 on which themain cutter 30 is fixed. The cutter 30 is preferablyj'ournalled in abearing 31 and is interchangeable so as to permit variation 4of theshape and diameter of the ,workV turned out. f"

At the extremity ofthe; frame opposite the shaft29- the heading cutter32' is provided mounted on a shaft 33 journalled in bearings liranddriven fromthe shaft 29 by a belt 85.

The purpose of this heading cutteris to headv f or shape theendoffthejwork, that is, to give the endv of the post the shape desired.v ln thedrawings the specific heading cutter eml ployed is 'designedtoVAgive the end of-the 'post a rounded appearance, although itwill be-readily understood ythat it may be given vva rious other configurationsas desired dependil.ing onthe lcharacterofy heading cutter em- Y Yployed.

The size Aand shape of the `cutter 32 v may .be adequately variedvraccording 'tothe desired shape of the post orother work to. be

Vturnedjout, and as the;latterapproache'sV the cutter 32V it'A ispartiallyxenibraced and (supported by a lyokeshaped auxiliary holder 36'lixedto'one'of the'sidefr'ails 6. Y f

i 'In order that the rotary' movement ofthe Yshaft 14' andconsequentlyzthe holder 8 and work may be temporarily Vinterruptedduringthe return movement of the carriage 7, a

clutch 37 is interposed. between the shaft 17 1 lisladnfmced'by thecable 21 andthecutteiri),V turns thel work-down tothe desiredlsize. 'Asvvand gear wheel18, and maybe conveniently operated inany suitablemanner. v I

The operation `of 'the machine is extremely,4 e simple requiring merelythe setting and?, :clamping of the ywork intheuholder 8 tofvv YgatherAwith properadj'ustment of the main cutter 30 and the'selection of aheading` cut-V `4-er1g32 of VtheV desired shape. Upon shifting vthelever i273V to engage the propery friction Vend shaping cutter.

the terminal of the workapproachesjthe cut-` ter 32 it is embraced bythe holder 36 and held inposition where, coincident withtheA operationof the cutter 30, the postis headed bythe cutter 32; 7 y

A further important feature of the inven. tion consistsl in that thetail ,stock 10 is ca'- pable of'adjustment by means of a slot and screwconnection 1()a permitting it to be dis-V placed laterally with respectto the axis of the Vmachine whereby posts of tapering form may beturned; The work holder 8 is further provided with a downwardlyprojecting pillar 9a securedto" the cross member 21b by screw 9b. Tomove. the axial line of the work sidewise in order that a tapering postmay be turnedV an ad-A justment of the tail stock 10 and'work holder 8are correspondingly made.

What wel claim is: Y y.

1. A. turning machine including a frame, a carriage movable therein,work supporting and rotating means mounted on saidcarriage, a maincutter mounted on said frame, and a cutterfor shaping the end ofthework, the cutters being so positioned and the work supporting androtatingf'means being so ranged that at least a portion of oney end ofthe work shall be exposedY and `so that the work-shall be rotated andcarried bythe carriagepast the main cutter to shape the length .Y

of the work while the exposed portion fof the l cutter vfor shaping theend of the work, the" cuttersbeing so positioned andthe work supportingand rotating means being so arranged that at leasta portion ofone endofthe work shall be' exposed and so that the work' shall berotated andcarried by the carriage past the V,main cutterjto shape the length ofthe work while theexposedportion of the end f f Y ofthe work, is broughtvupg'against the end VVshaping cutter to be shape'dsthereby atv Vthe endofthe travel ofthe vvorlnandY anfauxil- Vi'arywork,holder engageablefbyandV for supy porting Vthe workas the latter approaches theV f lntestimony whereof weV a'iixzour-l signatures. e f Y VLLEAMSKRGHNER..

, J. SHELDG.

ino

wheel 25 with the drive wheel 24 the carriage.Y i'

